US spy lab wants to geolocate any video or photo taken outdoors

If the cave happened to be around the corner from the town library or a Starbucks, you might be in luck. Then, you could get help from something like Google PlaNet: a deep-learning machine that was initially trained on 126 million photos with EXIF data in order to learn how to work out the location of almost any photo, just going by its pixels, no EXIF data needed.

Source: sophos.com